NOVEL RUTHENIUM CATALYSTS AND THEIR USE FOR ASYMMETRIC REDUCTION OF KETONES
申请人:HADDAD Nizar
公开号:US20150005500A1
公开(公告)日:2015-01-01
Disclosed are novel ruthenium compounds of formula (Ia) and (Ib):
wherein R
1
and the moiety
are defined herein. Also disclosed is a process for using these novel ruthenium compounds as catalysts for asymmetric hydrogenation and transfer hydrogenation of ketones with high reactivities and excellent selectivities.
Ruthenium catalysts and their use for asymmetric reduction of ketones
申请人:Haddad Nizar
公开号:US09029540B2
公开(公告)日:2015-05-12
Disclosed are novel ruthenium compounds of formula (Ia) and (Ib):
wherein R1 and the moiety are defined herein. Also disclosed is a process for using these novel ruthenium compounds as catalysts for asymmetric hydrogenation and transfer hydrogenation of ketones with high reactivities and excellent selectivities.